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-FourOhFour- t1_ixih0h6 wrote

I recall the theory was that he was able to notice "small" amoeba like creatures in water (not sure the correct term is for these large enough you can see with your eye but obviously not a bug or small fish) and concluded that there are smaller ones that can't be seen. How he came about that those caused infections was probably the tried and true method of let me try this on a guy and see what happens.

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Sany_Wave t1_ixijgz7 wrote

There are some amoebae that are large. Enough to poke with a pensil with only good glasses.

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TheArmoredKitten t1_ixj3wyi wrote

Yeah it's honestly really weird how long germ theory took to develop. The microscope was invented in the 1600s but germ theory wasn't firmly established until 250 years later.

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